
SyntaxHighlighter2 Security & Risk Analysis
wordpress.org/plugins/syntaxhighlighter2Easily post source code such as PHP or HTML and display it in a styled box.
Is SyntaxHighlighter2 Safe to Use in 2026?
Generally Safe
Score 85/100SyntaxHighlighter2 has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.
The security posture of syntaxhighlighter2 v2.1.2 appears to be relatively strong, with no known vulnerabilities or CVEs recorded. The static analysis shows a clean slate regarding dangerous functions, SQL injection risks, file operations, and external HTTP requests. The absence of any taint analysis findings further reinforces this. However, there are significant concerns regarding output escaping, as 100% of the identified outputs are not properly escaped. While the plugin has capability checks, the complete lack of nonce checks on AJAX handlers (though there are no AJAX handlers to begin with), REST API routes, and shortcodes means that if any of these entry points were introduced in the future without proper authentication and authorization, there could be vulnerabilities. The zero attack surface is a positive, but the lack of output escaping is a critical oversight that could lead to cross-site scripting (XSS) vulnerabilities if any user-supplied data is ever processed and displayed.
Key Concerns
- All outputs are unescaped
- No nonce checks on potential entry points
SyntaxHighlighter2 Security Vulnerabilities
SyntaxHighlighter2 Release Timeline
SyntaxHighlighter2 Code Analysis
Output Escaping
SyntaxHighlighter2 Attack Surface
WordPress Hooks 18
Maintenance & Trust
SyntaxHighlighter2 Maintenance & Trust
Maintenance Signals
Community Trust
SyntaxHighlighter2 Alternatives
Code View
code-view
Easily use highlightjs and line-numbers to syntax-highlighted sample code on your blog posts
SyntaxHighlighter Evolved: ABAP Brush
syntaxhighlighter-evolved-abap-brush
This is a Advanced Business Application Programming (ABAP) brush for the "SyntaxHighlighter Evolved" plugin.
SyntaxHighlighter Evolved
syntaxhighlighter
Easily post syntax-highlighted code to your site without having to modify the code at all. As seen on WordPress.com.
Code Widget
code-widget
Code widget help to add Short Code, PHP Code, HTML, and Simple Text in widget.
Validated
validated
This plugin will allow you to check your pages/posts HTML against the W3C Validator.
SyntaxHighlighter2 Developer Profile
4 plugins · 80 total installs
How We Detect SyntaxHighlighter2
Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.
Asset Fingerprints
/wp-content/plugins/syntaxhighlighter2/files/shCore.js/wp-content/plugins/syntaxhighlighter2/files/shAutoloader.js/wp-content/plugins/syntaxhighlighter2/files/shCore.js/wp-content/plugins/syntaxhighlighter2/files/shAutoloader.jssyntaxhighlighter2/files/shCore.js?ver=syntaxhighlighter2/files/shAutoloader.js?ver=HTML / DOM Fingerprints
syntaxhighlighterclass="brush: ; gutter: ; first-line: ; collapse: ; toolbar: ; light: ;SyntaxHighlighter[code language=""[/code]